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United States Patent | 5,289,604 |
Kressner | March 1, 1994 |
An electric toothbrush has a brush section which is demountable from a handle section that has a protruding brush drive shaft. Radial and axial securing of the brush section to the handle section is accomplished by structure separated by function, including radial securing structure at the base of the brush section that engages cooperating structure at the end of the handle section from which the drive shaft protrudes, and axial securing structure housed within the brush section that engages the protruding drive shaft of the handle section.
Inventors: | Kressner; Gerhard (Altenstadt/Hochst, DE) |
Assignee: | Braun Aktiengesellschaft (Frankfurt, DE) |
Appl. No.: | 855707 |
Filed: | May 5, 1992 |
PCT Filed: | September 5, 1990 |
PCT NO: | PCT/DE90/00673 |
371 Date: | May 5, 1992 |
102(e) Date: | May 5, 1992 |
PCT PUB.NO.: | WO91/07117 |
PCT PUB. Date: | May 30, 1991 |
Nov 14, 1989[DE] | 3937853 |
Current U.S. Class: | 15/22.1; 15/28; 403/313; 403/314; 403/326; 403/377 |
Intern'l Class: | A61C 017/34; A46B 013/02 |
Field of Search: | 15/22.1,23,24,28,29,97.1 403/313,314,326,374,377 |
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